A collection of information about locks, locksmithing and physical security written for homeowners, property managers and anyone else that may deal with lock issues on a frequent basis.
Authored by Charles Wooters, owner of Wooters Lock Company, LLC

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Tuesday, February 2, 2016

Attempting (and Failing) to Drill Open a Schlage Deadbolt

Schlage B60N deadbolt (top)

A common attack against deadbolts
involves drilling out the mounting screws so the housing can be removed
and the bolt retracted with a screwdriver.On most Grade 3 deadbolts, this can be accomplished in less than a
minute (provided one knows where to drill).Also, the noise created by doing this is minimal, making it an effective method for criminals to gain entry.For this reason, I offer my customers the
Schlage B60N. Like most Schlage deadbolts, this one comes with a reinforced housing designed to thwart drilling
attacks.

To demonstrate the effectiveness of this
product, I attempted to drill out one of the two mounting bolts on a used B60N
I had acquired from a previous job.I mounted the deadbolt on a stand of various
locks and attempted to drill it open using a Ridgid lithium ion cordless drill
and a Craftsman cobalt bit set, intended for drilling metals.

I marked off my drill point and
proceeded to drill the outside skin of the housing.I continued to drill, but could barely make
as much as a scratch in the metal plate underneath.After repeated attempts, I was unable to
penetrate the plate.I ended up having
to utilize a different tool to destroy the plate (I will not go into details
here).After several minutes of using the different method, I finally
penetrated the plate, revealing a small hole, exposing the mounting screw.

Failed drilling attempt; protective plate barely scratched!

After several more minutes of drilling I
was finally able to get the mounting screw to back out.Keep in mind that even though I was drilling
into the bottom of the mounting bolt, I still had to drill quite a way before
it would turn.

When all was said and done I had drilled
out one of the two mounting screws.However, it would not be possible to accomplish this with a regular
drill and bit—additional tools were necessary.

I would estimate if someone knew what
they were doing and had all the necessary tools ready to
go, it would take them about fifteen to twenty minutes to overcome one of these
deadbolts.Again, I would contrast this
against most deadbolts, which can easily be penetrated this way in less than a
minute and with fewer tools.

If after reading this you would like to
upgrade your security, you canvisit our websiteand request an appointment for a free consultation.

2 comments:

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